Espiral Atlas
MuscleHead and neck

Platysma

platysma

Pulls the corners of the lips downward and widens the mouth in expressions of sadness or fear; with the teeth clenched, it pulls the skin of the neck upward.

Head and neck – 3D human anatomy atlas

In the full entry

The full entry, with every field, sources, quiz and clinical correlations, is in the atlas.

  • Origin
  • Insertion
  • Innervation
  • Blood supply

Related clinical cases

  • Paralysis of the platysma

Other structures in this region

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